What is CVE-2026-84989?

CVE-2026-84989 is a high-severity vulnerability, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-03.

How severe is CVE-2026-84989?

High severity. CVSS v3 base score is 7.1 out of 10.

CVE-2026-84989

CVE-2026-84989

ntopng is a web-based network traffic monitoring application. In versions 6.7.0 through 6.7.260717, two REST v2 endpoints that manage ntopng's tag/badge feature — `POST /lua/rest/v2/delete/tag/tag.lua` and `POST /lua/rest/v2/edit/tag/tag.lua` — perform no authorization check at all. Any authenticated user, including a non-administrator ("unprivileged") account, can delete or rename any tag in the system, including tags created by an administrator. Version 6.7.260718 contains a fix.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-84989?: CVE-2026-84989 is a high-severity vulnerability, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-03.
How severe is CVE-2026-84989?: High severity. CVSS v3 base score is 7.1 out of 10.